lastChunk = pos >= bodySize;
final boolean requiresResponse = lastChunk && sendBlocking;
SendAcknowledgementHandler messageHandler = lastChunk ? handler : null;
final SessionSendContinuationMessage chunk =
new SessionSendContinuationMessage(msgI, bodyBuffer.toByteBuffer().array(), !lastChunk,
requiresResponse, messageHandler);
if (requiresResponse)
{
// When sending it blocking, only the last chunk will be blocking.